Effects of Ca2+Zr4+ ion pairs on spectroscopic properties of Cr3+ multisites in Cr3+-doped Gd3Ga5O12 garnets
- 15 June 1992
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 71 (12) , 6062-6068
- https://doi.org/10.1063/1.350463
Abstract
Some disorder exists in Gd3Ga5O12 (GGG) garnets because of a partial occupation of the octahedral sites by the Gd3+ ions. The luminescence of the Cr3+ ions introduced as dopant in the material is then affected. The situation is worse in (Ca,Zr)‐substituted GGG due to a great deal of Ca‐Zr defects introduced in large quantity in order to have a congruent composition. A simple model based on the local dilatation of the lattice around each defect is presented in order to describe the Cr3+ luminescence at any temperature. The influence of Ca‐Zr ion pairs on the average Cr3+→Tm3+ energy transfer is also studied.This publication has 17 references indexed in Scilit:
- Multisites Cr3+ in GGG and GSGG garnetsOptical and Quantum Electronics, 1990
- Spectroscopy of multisites Cr3+ and Nd3+ in yttrium aluminium garnetOptical and Quantum Electronics, 1990
- Optical spectroscopy of ACr3+-doped (Gd, Ca)3(Ga, Mg, Zr)2Ga3O12 garnetJournal of Luminescence, 1988
- Laser performance of Cr3+:Gd(Sc,Ga) garnetJournal of Applied Physics, 1985
- A theoretical analysis of modulation noise and dc erased noise in magnetic recordingApplied Physics A, 1982
- Sensitization of neodymium ion luminescence by chromium ions in a Gd3Ga5O12crystalSoviet Journal of Quantum Electronics, 1982
- Growth and investigation of {Gd3−xCax}[Ga2−y−zZryGdz] (Ga3)O12 garnetsJournal of Crystal Growth, 1975
- Unified model of the temperature quenching of narrow-line and broad-band emissionsJournal of Luminescence, 1975
- Étude du diagramme de phase dans le système Gd2O3-Ga2O3Journal of Crystal Growth, 1974
- Influence of Energy Transfer by the Exchange Mechanism on Donor LuminescenceThe Journal of Chemical Physics, 1965